feat: added is_half_width validator

Author: theteladras

README.md

@@ -72,6 +72,7 @@ Validator                                | Description
 **is_fqdn(str, options)**               | check if the string is a fully qualified domain name (e.g. domain.com).<br/><br/>`options` is an dictionary which defaults to `{ "require_tld": True, "allow_underscores": False, "allow_trailing_dot": False, "allow_numeric_tld": False, "allow_wildcard": False }`. If `allow_wildcard` is set to *True*, the validator will allow domain starting with `*.` (e.g. `*.example.com` or `*.shop.example.com`).
 **is_freight_container_id(str)** 		| alias for `isISO6346`, check if the string is a valid [ISO 6346](https://en.wikipedia.org/wiki/ISO_6346) shipping container identification.
 **is_full_width(str)**                  | check if the string contains any full-width chars.
+**is_half_width(str)**                  | check if the string contains any half-width chars.
 **is_hash(str, algorithm)**             | check if the string is a hash of type algorithm.<br/><br/>Algorithm is one of `['md4', 'md5', 'sha1', 'sha256', 'sha384', 'sha512', 'ripemd128', 'ripemd160', 'tiger128', 'tiger160', 'tiger192', 'crc32', 'crc32b']`
 **is_hexadecimal(str)**                 | check if the string is a hexadecimal number.
 **is_hsl(str)**                         | check if the string is an HSL (hue, saturation, lightness, optional alpha) color based on [CSS Colors Level 4 specification](https://developer.mozilla.org/en-US/docs/Web/CSS/color_value).<br/><br/>Comma-separated format supported. Space-separated format supported with the exception of a few edge cases (ex: `hsl(200grad+.1%62%/1)`).

pyvalidator/__init__.py

@@ -24,6 +24,7 @@
 from pyvalidator.is_float import is_float
 from pyvalidator.is_fqdn import is_fqdn
 from pyvalidator.is_full_width import is_full_width
+from pyvalidator.is_half_width import is_half_width
 from pyvalidator.is_hash import is_hash
 from pyvalidator.is_hexadecimal import is_hexadecimal
 from pyvalidator.is_hsl import is_hsl

pyvalidator/is_half_width.py

@@ -0,0 +1,10 @@
+from .utils.assert_string import assert_string
+from .utils.Classes.RegEx import RegEx
+
+
+def is_half_width(input: str) -> bool:
+    input = assert_string(input)
+
+    half_width_pattern = RegEx(r'[\u0020-\u007E\uFF61-\uFF9F\uFFA0-\uFFDC\uFFE8-\uFFEE0-9a-zA-Z]')
+
+    return half_width_pattern.match(input)

test/test_is_half_width.py

@@ -0,0 +1,29 @@
+import unittest
+from pyvalidator.is_half_width import is_half_width
+from . import print_test_ok
+
+class TestIsHalfWidth(unittest.TestCase):
+
+    def test_valid_half_width(self):
+        for i in [
+            '!"#$%&()<>/+=-_? ~^|.,@`{}[]',
+            'l-btn_02--active',
+            'abc123い',
+            'ｶﾀｶﾅﾞﾬ￩',
+            '!"#$%&()<>/+=-_? ~^|.,@`{}[]'
+        ]:
+            self.assertTrue(is_half_width(i))
+        print_test_ok()
+
+    def test_invalid_half_width(self):
+        for i in [
+            '３ー０　ａ＠ｃｏｍ'
+            'あいうえお',
+            '００１１',
+            'Ğood＝Parts'
+        ]:
+            self.assertFalse(is_half_width(i))
+        print_test_ok()
+
+if __name__ == '__main__':
+    unittest.main()